AUTHOR’S ABSTRACT OF THIS PAPHR ISSUHD 
BY THE BIBI[OGRAPHIC SERVICE, JANUARY 19 
STUDIES ON STRIPED MUSCLE STRUCTURE 
VI. THE COMPARATIVE HISTOLOGY OF THE LEG AND WING MUSCLE 
OF THE WASP, WITH SPECIAL REFERENCE TO THE PHENOMENON 
OF STRIPE REVERSAL DURING CONTRACTION AND TO THE 
GENETIC RELATION BETWEEN CONTRACTION BANDS AND INTER- 
CALATED DISCS 
H. EK. JORDAN 
Department of Histology and Embryology, University of Virginia Medical 
School 
FORTY-EIGHT FIGURES 
CONTENTS 
Introduction.. F 
Material and nethoda:: 
Rroanln tings hae. Bere 
IRYSRTAVEN GF Gh INE EEN ETD RE) fat aio sees Setolc ohdic Ge RerCUIERIE Oe cic: cor cn ECC IRs nor an Sa Ce 
IDYERYGIPT OUILONNG ep tcay ote ete cic o cco cited te nee ohab ene creo Clo Diotu ann wot cre caSI Ote neers ootlee 
hy ALS TANIA O2 Mince d.o crn so Maia eo eo GU teAcchcon rie RIGO HT SURE DIGS DORIS OE a oer 
DeaWaniromauscle yes-eatecotacreetase toe ole aver ome ie cae eisics Ge moeioeee Seaeicneseg 
Discussion 
The accessory disc. . 
. The anisotropic eho nees ones 
Contraction and the contraction band. 
Intercalated dises.. 
Samminty 
mo ey Ses 
I. INTRODUCTION 
wlelophragma rand smesopura gia asc sie mentee ee are tale oleae aie 
5) TBE ARCO SONOS eset aces aerate Ak eI OREEEG Ga arte tic a Ome maeta acne OIaG cere ore 
2 
2 
30 
CO 00 oO tt or 
41 
44 
46 
47 
ol 
50 
57 
This investigation centers on the wing muscle of the wasp. 
The reason for the selection of this particular material is the 
fact that it forms the basis of Schaefer’s’’ description of the 
morphologic changes exhibited by striated muscle 
during 
contraction. Upon this description has been built a widely 
prevalent hypothesis of muscle contraction—the 
hypothesis. 
imbibition 
